2008 December | Fiat 500

Archive for December, 2008

POSSIBLE CAUSES	REMEDIES
1) Insufficient clutch pedal return travel, due to the flexible cable being stuck or the pedal return spring being too weak.	1) Locate cause of failure and replace spring or eliminate sticking of control cable.
2) Damaged throwout mechanism.	2) Overhaul throwout mechanism; also clutch, if required.
3) Clutch pressure springs weak or broken.	3) Overhaul clutch and replace springs.
4) Oil or grease on driven plate facings.	4) Remove cause of oil leakage and replace facings, if they cannot be reconditioned by rubbing with turpentine and metal brush.
5) Driven plate facings worn or burned.	5) Replace facings.

POSSIBLE CAUSES	REMEDIES
1) Misalignment of driven plate to flywheel causes slight movement of driven plate hub in respect of facings. This noise is particularly audible with engine idling or running at low speed.	1) Set level of driven plate. With driven plate locked on clutch shaft, set it under slight rotation and check for no runout in excess of .0118″ (0, 3 mm), using a scriber.
2) Insufficient pedal free play.	2) Set clutch pedal free play at 1³/₈ to 1 ^9/16 (35 to 40 mm)
3) Pedal return spring broken, weak or unhooked.	3) Replace the spring or hook it up carefully.
4) Forked lever return spring broken, weak or unhooked.	4) Replace the spring or hook it up and check for correct position.

POSSIBLE CAUSES	REMEDIES
1) Oil or grease on flywheel, pressure plate and driven plate facings.	1) Remove cause of leakage, clean flywheel and pressure plate thoroughly, replace driven plate facings.
2) Loose driven plate facings due to poor rivet tightness.	2) If facings are not worn, replace defective rivets. Otherwise, replace facings and clench rivets securely.
3) Driven plate hub does not slide freely on clutch shaft.	3) Remove any foreign matter or dirt deposits from shaft splines. Should trouble still be present, replace damaged part.
4) Pressure plate deeply cracked or broken.	4) Replace pressure plate.
5) Improper adjustment of withdrawal levers.	5) Adjust withdrawal levers as specified, under <<Assembly and Adjustment of Clutch>>.
6) Misalignment.	6) Locate the defective point and, if possible, reset alignment or replace distorted parts.
7) Stiffened throwout mechanism.	7) Locate stiff point and replace parts, if necessary.
8) Driven plate facings worn out.	8) Install new facings and make sure that the driven plate, pressure plate and flywheel are not damaged.